./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6141c3324b7a590b618db452d411a7ee802143790c8a6f6c8440be9321f9a2e7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:04:18,661 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:04:18,723 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:04:18,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:04:18,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:04:18,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:04:18,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:04:18,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:04:18,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:04:18,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:04:18,755 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:04:18,755 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:04:18,756 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:04:18,756 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:04:18,757 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:04:18,757 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:04:18,758 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:04:18,758 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:04:18,759 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:04:18,760 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:04:18,760 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:04:18,761 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:04:18,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:04:18,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:04:18,763 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:04:18,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:04:18,764 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:04:18,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:04:18,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:04:18,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:04:18,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:04:18,766 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:04:18,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:04:18,766 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:04:18,767 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:04:18,767 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:04:18,767 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:04:18,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:04:18,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:04:18,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:04:18,768 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:04:18,768 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:04:18,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:04:18,768 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:04:18,769 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:04:18,769 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:04:18,769 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:04:18,769 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6141c3324b7a590b618db452d411a7ee802143790c8a6f6c8440be9321f9a2e7 [2023-12-02 15:04:18,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:04:18,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:04:18,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:04:19,000 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:04:19,001 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:04:19,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c [2023-12-02 15:04:21,781 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:04:21,979 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:04:21,980 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c [2023-12-02 15:04:21,994 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/data/bf7edaa3e/0913cbea581b4ff4823b9271c47704cb/FLAG600604e8e [2023-12-02 15:04:22,010 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/data/bf7edaa3e/0913cbea581b4ff4823b9271c47704cb [2023-12-02 15:04:22,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:04:22,014 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:04:22,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:04:22,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:04:22,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:04:22,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:04:22" (1/1) ... [2023-12-02 15:04:22,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36983ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:04:22, skipping insertion in model container [2023-12-02 15:04:22,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:04:22" (1/1) ... [2023-12-02 15:04:22,082 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:04:22,310 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c[12672,12685] [2023-12-02 15:04:22,339 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:04:22,351 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:04:22,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-12-02 15:04:22,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [155] [2023-12-02 15:04:22,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [521] [2023-12-02 15:04:22,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [530] [2023-12-02 15:04:22,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [565] [2023-12-02 15:04:22,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [616] [2023-12-02 15:04:22,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [709] [2023-12-02 15:04:22,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [866] [2023-12-02 15:04:22,403 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c[12672,12685] [2023-12-02 15:04:22,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:04:22,435 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:04:22,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:04:22 WrapperNode [2023-12-02 15:04:22,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:04:22,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:04:22,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:04:22,437 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:04:22,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:04:22" (1/1) ... [2023-12-02 15:04:22,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:04:22" (1/1) ... [2023-12-02 15:04:22,480 INFO L138 Inliner]: procedures = 54, calls = 96, calls flagged for inlining = 22, calls inlined = 18, statements flattened = 171 [2023-12-02 15:04:22,480 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:04:22,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:04:22,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:04:22,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:04:22,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:04:22" (1/1) ... [2023-12-02 15:04:22,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:04:22" (1/1) ... [2023-12-02 15:04:22,493 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:04:22" (1/1) ... [2023-12-02 15:04:22,493 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:04:22" (1/1) ... [2023-12-02 15:04:22,499 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:04:22" (1/1) ... [2023-12-02 15:04:22,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:04:22" (1/1) ... [2023-12-02 15:04:22,505 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:04:22" (1/1) ... [2023-12-02 15:04:22,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:04:22" (1/1) ... [2023-12-02 15:04:22,509 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:04:22,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:04:22,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:04:22,511 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:04:22,511 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:04:22" (1/1) ... [2023-12-02 15:04:22,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:04:22,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:04:22,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:04:22,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:04:22,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:04:22,582 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-02 15:04:22,582 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-02 15:04:22,583 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-02 15:04:22,583 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-02 15:04:22,583 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-02 15:04:22,583 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-02 15:04:22,583 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-02 15:04:22,583 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-02 15:04:22,583 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-12-02 15:04:22,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-12-02 15:04:22,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:04:22,584 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-02 15:04:22,584 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-02 15:04:22,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:04:22,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:04:22,658 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:04:22,660 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:04:22,911 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:04:23,002 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:04:23,003 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 15:04:23,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:04:23 BoogieIcfgContainer [2023-12-02 15:04:23,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:04:23,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:04:23,007 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:04:23,011 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:04:23,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:04:22" (1/3) ... [2023-12-02 15:04:23,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e7c24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:04:23, skipping insertion in model container [2023-12-02 15:04:23,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:04:22" (2/3) ... [2023-12-02 15:04:23,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e7c24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:04:23, skipping insertion in model container [2023-12-02 15:04:23,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:04:23" (3/3) ... [2023-12-02 15:04:23,013 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product17.cil.c [2023-12-02 15:04:23,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:04:23,032 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:04:23,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:04:23,074 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7a5b8d18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:04:23,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:04:23,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 15:04:23,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 15:04:23,084 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:04:23,084 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:04:23,085 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:04:23,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:04:23,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1280732640, now seen corresponding path program 1 times [2023-12-02 15:04:23,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:04:23,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056747003] [2023-12-02 15:04:23,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:04:23,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:04:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:04:23,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 15:04:23,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:04:23,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056747003] [2023-12-02 15:04:23,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056747003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:04:23,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:04:23,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:04:23,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912987591] [2023-12-02 15:04:23,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:04:23,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 15:04:23,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:04:23,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 15:04:23,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:04:23,302 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 15:04:23,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:04:23,357 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2023-12-02 15:04:23,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 15:04:23,359 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-12-02 15:04:23,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:04:23,366 INFO L225 Difference]: With dead ends: 100 [2023-12-02 15:04:23,367 INFO L226 Difference]: Without dead ends: 46 [2023-12-02 15:04:23,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 15:04:23,373 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:04:23,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:04:23,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-12-02 15:04:23,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-12-02 15:04:23,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 15:04:23,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2023-12-02 15:04:23,409 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2023-12-02 15:04:23,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:04:23,410 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2023-12-02 15:04:23,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 15:04:23,410 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2023-12-02 15:04:23,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 15:04:23,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:04:23,413 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:04:23,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:04:23,413 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:04:23,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:04:23,414 INFO L85 PathProgramCache]: Analyzing trace with hash 935905198, now seen corresponding path program 1 times [2023-12-02 15:04:23,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:04:23,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844105819] [2023-12-02 15:04:23,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:04:23,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:04:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:04:23,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 15:04:23,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:04:23,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844105819] [2023-12-02 15:04:23,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844105819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:04:23,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:04:23,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:04:23,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317894309] [2023-12-02 15:04:23,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:04:23,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:04:23,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:04:23,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:04:23,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:23,519 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 15:04:23,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:04:23,553 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2023-12-02 15:04:23,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:04:23,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-12-02 15:04:23,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:04:23,554 INFO L225 Difference]: With dead ends: 69 [2023-12-02 15:04:23,554 INFO L226 Difference]: Without dead ends: 38 [2023-12-02 15:04:23,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:23,557 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:04:23,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 61 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:04:23,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-12-02 15:04:23,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-12-02 15:04:23,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-02 15:04:23,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2023-12-02 15:04:23,565 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 22 [2023-12-02 15:04:23,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:04:23,566 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2023-12-02 15:04:23,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 15:04:23,566 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2023-12-02 15:04:23,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 15:04:23,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:04:23,567 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:04:23,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:04:23,568 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:04:23,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:04:23,569 INFO L85 PathProgramCache]: Analyzing trace with hash -175200608, now seen corresponding path program 1 times [2023-12-02 15:04:23,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:04:23,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068892365] [2023-12-02 15:04:23,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:04:23,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:04:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:04:23,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 15:04:23,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:04:23,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068892365] [2023-12-02 15:04:23,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068892365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:04:23,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:04:23,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:04:23,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554135397] [2023-12-02 15:04:23,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:04:23,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:04:23,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:04:23,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:04:23,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:23,682 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 15:04:23,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:04:23,714 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2023-12-02 15:04:23,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:04:23,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2023-12-02 15:04:23,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:04:23,715 INFO L225 Difference]: With dead ends: 74 [2023-12-02 15:04:23,715 INFO L226 Difference]: Without dead ends: 38 [2023-12-02 15:04:23,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:23,717 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:04:23,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 33 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:04:23,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-12-02 15:04:23,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-12-02 15:04:23,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 30 states have internal predecessors, (32), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-02 15:04:23,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2023-12-02 15:04:23,726 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 24 [2023-12-02 15:04:23,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:04:23,727 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2023-12-02 15:04:23,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 15:04:23,727 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-12-02 15:04:23,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 15:04:23,728 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:04:23,729 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:04:23,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:04:23,729 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:04:23,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:04:23,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1003362208, now seen corresponding path program 1 times [2023-12-02 15:04:23,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:04:23,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696873184] [2023-12-02 15:04:23,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:04:23,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:04:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:04:23,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 15:04:23,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:04:23,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696873184] [2023-12-02 15:04:23,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696873184] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:04:23,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:04:23,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:04:23,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11794233] [2023-12-02 15:04:23,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:04:23,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:04:23,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:04:23,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:04:23,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:23,819 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 15:04:23,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:04:23,845 INFO L93 Difference]: Finished difference Result 72 states and 87 transitions. [2023-12-02 15:04:23,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:04:23,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2023-12-02 15:04:23,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:04:23,846 INFO L225 Difference]: With dead ends: 72 [2023-12-02 15:04:23,846 INFO L226 Difference]: Without dead ends: 36 [2023-12-02 15:04:23,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:04:23,849 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:04:23,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 30 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:04:23,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-12-02 15:04:23,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-12-02 15:04:23,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 15:04:23,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2023-12-02 15:04:23,856 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 27 [2023-12-02 15:04:23,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:04:23,857 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2023-12-02 15:04:23,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 15:04:23,857 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2023-12-02 15:04:23,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-02 15:04:23,858 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:04:23,858 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:04:23,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 15:04:23,859 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:04:23,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:04:23,859 INFO L85 PathProgramCache]: Analyzing trace with hash -730508032, now seen corresponding path program 1 times [2023-12-02 15:04:23,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:04:23,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646596028] [2023-12-02 15:04:23,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:04:23,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:04:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:04:23,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 15:04:23,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:04:23,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646596028] [2023-12-02 15:04:23,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646596028] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:04:23,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:04:23,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 15:04:23,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269403861] [2023-12-02 15:04:23,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:04:23,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:04:23,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:04:23,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:04:23,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:04:23,973 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 15:04:24,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:04:24,067 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2023-12-02 15:04:24,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:04:24,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2023-12-02 15:04:24,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:04:24,068 INFO L225 Difference]: With dead ends: 68 [2023-12-02 15:04:24,068 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 15:04:24,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 15:04:24,070 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 19 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:04:24,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 83 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:04:24,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 15:04:24,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 15:04:24,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:04:24,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 15:04:24,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2023-12-02 15:04:24,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:04:24,073 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 15:04:24,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 15:04:24,073 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 15:04:24,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 15:04:24,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 15:04:24,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 15:04:24,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 15:04:24,195 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 742 748) no Hoare annotation was computed. [2023-12-02 15:04:24,195 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 742 748) the Hoare annotation is: true [2023-12-02 15:04:24,195 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 647 658) the Hoare annotation is: true [2023-12-02 15:04:24,195 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 647 658) no Hoare annotation was computed. [2023-12-02 15:04:24,195 INFO L899 garLoopResultBuilder]: For program point L729-1(lines 729 735) no Hoare annotation was computed. [2023-12-02 15:04:24,195 INFO L899 garLoopResultBuilder]: For program point L758(lines 758 766) no Hoare annotation was computed. [2023-12-02 15:04:24,196 INFO L895 garLoopResultBuilder]: At program point L597(line 597) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-12-02 15:04:24,196 INFO L899 garLoopResultBuilder]: For program point L597-1(line 597) no Hoare annotation was computed. [2023-12-02 15:04:24,196 INFO L899 garLoopResultBuilder]: For program point L754(lines 754 771) no Hoare annotation was computed. [2023-12-02 15:04:24,196 INFO L899 garLoopResultBuilder]: For program point L722-2(lines 718 740) no Hoare annotation was computed. [2023-12-02 15:04:24,196 INFO L895 garLoopResultBuilder]: At program point L582(line 582) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-12-02 15:04:24,197 INFO L899 garLoopResultBuilder]: For program point L582-1(line 582) no Hoare annotation was computed. [2023-12-02 15:04:24,197 INFO L895 garLoopResultBuilder]: At program point L764(line 764) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2023-12-02 15:04:24,197 INFO L899 garLoopResultBuilder]: For program point L599(lines 599 609) no Hoare annotation was computed. [2023-12-02 15:04:24,197 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 612) no Hoare annotation was computed. [2023-12-02 15:04:24,197 INFO L899 garLoopResultBuilder]: For program point L595-1(lines 587 615) no Hoare annotation was computed. [2023-12-02 15:04:24,197 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 715 741) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-12-02 15:04:24,198 INFO L895 garLoopResultBuilder]: At program point L769(line 769) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-12-02 15:04:24,198 INFO L899 garLoopResultBuilder]: For program point L769-1(lines 750 774) no Hoare annotation was computed. [2023-12-02 15:04:24,198 INFO L899 garLoopResultBuilder]: For program point L600(lines 600 606) no Hoare annotation was computed. [2023-12-02 15:04:24,198 INFO L899 garLoopResultBuilder]: For program point L526(line 526) no Hoare annotation was computed. [2023-12-02 15:04:24,198 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 715 741) no Hoare annotation was computed. [2023-12-02 15:04:24,198 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 526) no Hoare annotation was computed. [2023-12-02 15:04:24,199 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2023-12-02 15:04:24,199 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2023-12-02 15:04:24,199 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2023-12-02 15:04:24,199 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-12-02 15:04:24,199 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-12-02 15:04:24,199 INFO L899 garLoopResultBuilder]: For program point L77(lines 52 81) no Hoare annotation was computed. [2023-12-02 15:04:24,199 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2023-12-02 15:04:24,200 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-12-02 15:04:24,200 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-12-02 15:04:24,200 INFO L895 garLoopResultBuilder]: At program point L923(lines 876 924) the Hoare annotation is: false [2023-12-02 15:04:24,200 INFO L899 garLoopResultBuilder]: For program point L878(lines 877 922) no Hoare annotation was computed. [2023-12-02 15:04:24,200 INFO L895 garLoopResultBuilder]: At program point L899(line 899) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-12-02 15:04:24,200 INFO L895 garLoopResultBuilder]: At program point L920(lines 877 922) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-12-02 15:04:24,201 INFO L899 garLoopResultBuilder]: For program point L887(lines 887 893) no Hoare annotation was computed. [2023-12-02 15:04:24,201 INFO L899 garLoopResultBuilder]: For program point L887-1(lines 887 893) no Hoare annotation was computed. [2023-12-02 15:04:24,201 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 15:04:24,201 INFO L895 garLoopResultBuilder]: At program point L913-2(lines 907 918) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-12-02 15:04:24,201 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 15:04:24,201 INFO L899 garLoopResultBuilder]: For program point L897(lines 897 903) no Hoare annotation was computed. [2023-12-02 15:04:24,201 INFO L899 garLoopResultBuilder]: For program point L897-1(lines 897 903) no Hoare annotation was computed. [2023-12-02 15:04:24,202 INFO L899 garLoopResultBuilder]: For program point L926(lines 867 930) no Hoare annotation was computed. [2023-12-02 15:04:24,202 INFO L895 garLoopResultBuilder]: At program point L889(line 889) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-12-02 15:04:24,202 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 149) no Hoare annotation was computed. [2023-12-02 15:04:24,202 INFO L899 garLoopResultBuilder]: For program point L142-2(lines 142 149) no Hoare annotation was computed. [2023-12-02 15:04:24,202 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 635 646) no Hoare annotation was computed. [2023-12-02 15:04:24,202 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 635 646) the Hoare annotation is: true [2023-12-02 15:04:24,203 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 802 810) no Hoare annotation was computed. [2023-12-02 15:04:24,203 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 802 810) the Hoare annotation is: true [2023-12-02 15:04:24,205 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-02 15:04:24,207 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:04:24,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:04:24 BoogieIcfgContainer [2023-12-02 15:04:24,217 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:04:24,218 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:04:24,218 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:04:24,218 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:04:24,218 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:04:23" (3/4) ... [2023-12-02 15:04:24,220 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 15:04:24,222 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-12-02 15:04:24,222 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-12-02 15:04:24,222 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-12-02 15:04:24,222 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-12-02 15:04:24,223 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-12-02 15:04:24,223 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-12-02 15:04:24,230 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2023-12-02 15:04:24,231 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-12-02 15:04:24,231 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 15:04:24,232 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 15:04:24,232 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 15:04:24,318 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 15:04:24,319 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 15:04:24,319 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:04:24,320 INFO L158 Benchmark]: Toolchain (without parser) took 2306.09ms. Allocated memory is still 144.7MB. Free memory was 99.3MB in the beginning and 56.3MB in the end (delta: 43.0MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. [2023-12-02 15:04:24,321 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:04:24,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.59ms. Allocated memory is still 144.7MB. Free memory was 99.3MB in the beginning and 79.9MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 15:04:24,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.34ms. Allocated memory is still 144.7MB. Free memory was 79.9MB in the beginning and 77.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:04:24,322 INFO L158 Benchmark]: Boogie Preprocessor took 28.88ms. Allocated memory is still 144.7MB. Free memory was 77.9MB in the beginning and 76.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:04:24,322 INFO L158 Benchmark]: RCFGBuilder took 494.41ms. Allocated memory is still 144.7MB. Free memory was 76.2MB in the beginning and 101.2MB in the end (delta: -24.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 15:04:24,323 INFO L158 Benchmark]: TraceAbstraction took 1209.93ms. Allocated memory is still 144.7MB. Free memory was 100.5MB in the beginning and 63.5MB in the end (delta: 37.0MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2023-12-02 15:04:24,323 INFO L158 Benchmark]: Witness Printer took 101.85ms. Allocated memory is still 144.7MB. Free memory was 63.5MB in the beginning and 56.3MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 15:04:24,326 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.59ms. Allocated memory is still 144.7MB. Free memory was 99.3MB in the beginning and 79.9MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.34ms. Allocated memory is still 144.7MB. Free memory was 79.9MB in the beginning and 77.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.88ms. Allocated memory is still 144.7MB. Free memory was 77.9MB in the beginning and 76.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 494.41ms. Allocated memory is still 144.7MB. Free memory was 76.2MB in the beginning and 101.2MB in the end (delta: -24.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1209.93ms. Allocated memory is still 144.7MB. Free memory was 100.5MB in the beginning and 63.5MB in the end (delta: 37.0MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * Witness Printer took 101.85ms. Allocated memory is still 144.7MB. Free memory was 63.5MB in the beginning and 56.3MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 155]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [155] - GenericResultAtLocation [Line: 521]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [521] - GenericResultAtLocation [Line: 530]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [530] - GenericResultAtLocation [Line: 565]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [565] - GenericResultAtLocation [Line: 616]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [616] - GenericResultAtLocation [Line: 709]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [709] - GenericResultAtLocation [Line: 866]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [866] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 526]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 256 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 125 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 171 mSDtfsCounter, 125 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 90 PreInvPairs, 95 NumberOfFragments, 106 HoareAnnotationTreeSize, 90 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 214 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 877]: Loop Invariant Derived loop invariant: (((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-02 15:04:24,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73281748-c9db-4011-902a-36aac7c8ecf3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE